package/base-files/files/etc/hotplug.d/iface/10-routes

   1 add_route() {
   2         local config="$1"
   3
   4         # is this route intended for the
   5         # $INTERFACE of this hotplug event
   6         config_get interface "$config" interface
   7         [ "$interface" != "$INTERFACE" ] && return 0
   8
   9         # get the real interface name from network config
  10         config_get dev "$interface" ifname
  11
  12         config_get target "$config" target
  13         config_get netmask "$config" netmask
  14         config_get gateway "$config" gateway
  15         config_get metric "$config" metric
  16
  17         # make sure there is a gateway and a target
  18         [ -n "$target" ] || {
  19                 echo "Missing target in route section $config"
  20                 return 1
  21         }
  22         [ -n "$gateway" ] || {
  23                 echo "Missing gateway in route section $config"
  24                 return 1
  25         }
  26
  27         netmask="${netmask:-255.255.255.255}"
  28         dest="${netmask:+-net "$target" netmask "$netmask"}"
  29         dest="${dest:--host "$target"}"
  30
  31         /sbin/route add $dest gw "$gateway" ${dev:+dev "$dev"} ${metric:+ metric "$metric"}
  32 }
  33
  34 case "$ACTION" in
  35         ifup)
  36                 include /lib/network
  37                 scan_interfaces
  38                 config_foreach "add_route" route
  39         ;;
  40 esac